v10.0.0-alpha.10

Improvements

• [jss] Simplify cloneStyle function (#1003)
• [jss] Use WeakMap inside SheetsManager (#1019)
• [internal] Improve publish script for creating github release (#999)
• [react-jss] Warn about themed styles misuse (#1006)

Bug fixes

• [jss-starter-kit] Fix react-jss exports and add missing jss exports (#1001)
• [jss-plugin-camel-case] Fix hyphenating css variables (#1017)